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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January in Selwyn, New Zealand, is an agreeable summer month, with an average temperature fluctuating between 53.4°F and 70.3°F. January, having an average high-temperature of 70.3°F and an average low-temperature of 53.4°F, is the warmest month. Weather in January »
Weather in February
The last month of the summer, February, is another pleasant month in Selwyn, New Zealand, with an average temperature ranging between max 70.2°F and min 53.1°F. The transition from January to February sees an average high-temperature of a still agreeable 70.2°F, indicating a minor variance from the prior month. Weather in February »
Weather in March
March, the first month of the autumn in Selwyn, is also an enjoyable month, with an average temperature fluctuating between 66.2°F and 50.5°F. The weather during March records an average high-temperature of a refreshing 66.2°F, closely mirroring the preceding month. Weather in March »
Weather in April
April, like March, in Selwyn, New Zealand, is another comfortable autumn month, with an average temperature ranging between max 61.2°F and min 46.9°F. The ushering in of April brings an average high-temperature of a still enjoyable 61.2°F, closely mirroring the 66.2°F of March. Weather in April »
Weather in May
The last month of the autumn, May, is another refreshing month in Selwyn, New Zealand, with an average temperature varying between 56.5°F and 43.5°F. The arrival of May sees a recorded average high-temperature of a mild 56.5°F, showing little divergence from the previous month's conditions. Weather in May »
Weather in June
The first month of the winter, June, is also a fresh month in Selwyn, New Zealand, with an average temperature ranging between min 40.5°F and max 51.3°F. The transition from May to June sees average high-temperatures adjusting to a fresh 51.3°F, from a not significantly different 56.5°F. Weather in June »
Weather in July
July, the same as June, is a cool winter month in Selwyn, New Zealand, with temperature in the range of an average high of 50.5°F and an average low of 38.8°F. Selwyn's coldest weather arrives in July, when temperatures average a high of 50.5°F and a low of 38.8°F. Weather in July »
Weather in August
August, the last month of the winter in Selwyn, is also a fresh month, with an average temperature ranging between max 53.2°F and min 40.1°F. The commencement of August records an average high-temperature of a still fresh 53.2°F, barely varying from July's 50.5°F. Weather in August »
Weather in September
September, the first month of the spring in Selwyn, is a mild month, with an average temperature fluctuating between 55.8°F and 40.1°F. September's advent presents an average high-temperature of a refreshing 55.8°F, indicating a slight variation from the conditions of the previous month. Weather in September »
Weather in October
October, the same as September, in Selwyn, New Zealand, is a moderate spring month, with temperature in the range of an average high of 59.4°F and an average low of 42.1°F. Selwyn's shift from September to October is accompanied by an average high-temperature of a still moderate 59.4°F, a slight deviation from 55.8°F. Weather in October »
Weather in November
November, the last month of the spring in Selwyn, is a comfortable month, with an average temperature ranging between max 63°F and min 45.7°F. November ushers in an average high-temperature of a comfortable 63°F, aligning closely with the preceding month. Weather in November »
Weather in December
The first month of the summer, December, is also an enjoyable month in Selwyn, New Zealand, with an average temperature varying between 50.4°F and 67.3°F. December observes an average high-temperature of a still refreshing 67.3°F, marking an insignificant difference from November's 63°F. Weather in December »
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest in Selwyn?
January, noted for its average high-temperature of 70.3°F and an average low-temperature of 53.4°F, is considered the warmest month.
What is the least humid month in Selwyn?
January is the least humid month in Selwyn, New Zealand, with an average relative humidity of 70%.
How many days does it rain in Selwyn?
Throughout the year, in Selwyn, New Zealand, there are 114.3 rainfall days, and 11.81" of precipitation is accumulated.
When it does not snow in Selwyn?
In Selwyn, snow does not fall in January through May, October through December.
How much does it snow in Selwyn?
Throughout the year, in Selwyn, New Zealand, 0.51" of snow is accumulated.
What is the month with the highest UV index in Selwyn?
With an average maximum UV index of 5, January is the month with the highest UV index in Selwyn.
When is Daylight Saving Time (DST) in Selwyn?
On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends in Selwyn, New Zealand, and the time zone changes from NZDT to NZST. The next Daylight Saving Time starts on Sunday, 29. September 2024, at 2:00 am, and the time zone reverts from NZST to NZDT.
What is the month with the lowest UV index in Selwyn?
April through September, with an average maximum UV index of 3, are months with the lowest UV index in Selwyn.
What is the most humid month in Selwyn?
With an average relative humidity of 81%, June is the most humid month.
When does it snow in Selwyn?
Months with snowfall are June through September.
What is the month with the shortest days in Selwyn?
The month with the shortest days in Selwyn, New Zealand, is June, with an average of 9h and 0min of daylight.
What is the month with the least sunshine in Selwyn?
With an average of 5.1h of sunshine, June has the least sunshine of the year.
What time of the year is the coldest in Selwyn?
In Selwyn, New Zealand, the lowest temperatures are generally noted in July, averaging a high of 50.5°F and a low of 38.8°F.
What is the snowiest month in Selwyn?
The month with the most snowfall is August, when snow falls for 0.3 days and typically aggregates up to 0.2" of snow.
What is the driest month in Selwyn?
The month with the least rainfall is September, when the rain falls for 8.2 days and typically collects 0.55" of precipitation.
What is the rainiest month in Selwyn?
October is the month with the most rainfall in Selwyn. Rain falls for 12.5 days and accumulates 1.5" of precipitation.
When are the longest days in Selwyn?
The month with the longest days in Selwyn, New Zealand, is December, with an average of 15h and 24min of daylight.
What month has the most sunshine in Selwyn?
The month with the most sunshine is December, with an average of 10.4h of sunshine.
Average temperature
Selwyn, New Zealand
The warmest month (with the highest average high temperature) is January (70.3°F).
The month with the lowest average high temperature is July (50.5°F).
The month with the highest average low temperature is January (53.4°F).
The coldest month (with the lowest average low temperature) is July (38.8°F).
Average pressure
Selwyn, New Zealand
- Average pressure in January:
29.86"Hg - Average pressure in February:
29.96"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.85"Hg - Average pressure in October:
29.86"Hg - Average pressure in November:
29.85"Hg - Average pressure in December:
29.88"Hg
The month with the highest atmospheric pressure is March (30.03"Hg).
The months with the lowest atmospheric pressure are September and November (29.85"Hg).
Average wind speed
Selwyn, New Zealand
- Average wind speed in January:
9.5mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
8mph - Average wind speed in August:
7.7mph - Average wind speed in September:
8.6mph - Average wind speed in October:
8.8mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (7.7mph).
Average humidity
Selwyn, New Zealand
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is January (70%).
Average rainfall
Selwyn, New Zealand
- Average rainfall in January:
0.79" - Average rainfall in February:
0.79" - Average rainfall in March:
0.83" - Average rainfall in April:
1.02" - Average rainfall in May:
0.83" - Average rainfall in June:
1.22"
The wettest month (with the highest rainfall) is October (1.5").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days
Selwyn, New Zealand
- Average rainfall days in January:
10 days - Average rainfall days in February:
8.2 days - Average rainfall days in March:
8.5 days - Average rainfall days in April:
10.2 days - Average rainfall days in May:
8 days - Average rainfall days in June:
9.6 days
- Average rainfall days in July:
8.6 days - Average rainfall days in August:
9.3 days - Average rainfall days in September:
8.2 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
11 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is October (12.5 days).
The month with the least rainy days is May (8 days).
Average snowfall
Selwyn, New Zealand
The month with the highest snowfall is August (0.2").
The months with the least snowfall are January, February, March, April, May, October, November and December (0").
Average snowfall days
Selwyn, New Zealand
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0.3 days
- Average snowfall days in July:
0.2 days - Average snowfall days in August:
0.3 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The months with the highest number of snowfall days are June and August (0.3 days).
The months with the least snowfall days are January, February, March, April, October, November and December (0 days).
Average daylight / Average sunshine
Selwyn, New Zealand
- Average daylight in January:
15h and 0min - Average daylight in February:
13h and 5min - Average daylight in March:
12h and 2min - Average daylight in April:
10h and 5min - Average daylight in May:
9h and 4min - Average daylight in June:
9h and 0min
- Average daylight in July:
9h and 2min - Average daylight in August:
10h and 2min - Average daylight in September:
11h and 5min - Average daylight in October:
13h and 2min - Average daylight in November:
14h and 4min - Average daylight in December:
15h and 2min
The month with the longest days is December (Average daylight: 15h and 24min).
The month with the shortest days is June (Average daylight: 9h and 0min).
- Average sunshine in January:
9h and 4min - Average sunshine in February:
7h and 4min - Average sunshine in March:
7h and 4min - Average sunshine in April:
7h and 2min - Average sunshine in May:
7h and 3min - Average sunshine in June:
5h and 1min
- Average sunshine in July:
6h and 3min - Average sunshine in August:
7h and 0min - Average sunshine in September:
7h and 4min - Average sunshine in October:
7h and 4min - Average sunshine in November:
8h and 3min - Average sunshine in December:
10h and 2min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 6min).
Average sunshine days
Selwyn, New Zealand
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
18 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
19 days - Average sunshine days in May:
21.2 days - Average sunshine days in June:
18.9 days
- Average sunshine days in July:
20.4 days - Average sunshine days in August:
20 days - Average sunshine days in September:
20 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
18.3 days
The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is November (17.3 days).
Average UV index
Selwyn, New Zealand
The month with the highest UV index is January (UV index 5).
The months with the lowest UV index are April, May, June, July, August and September (UV index 3).
Average cloud cover
Selwyn, New Zealand
The month with the most cloud cover is June (Cloud cover 43).
The months with the least cloud cover are January, February, March and May (Cloud cover 37).
Average visibility
Selwyn, New Zealand
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
